What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)

How many zeros does this polynomial function, y=(x-8)(x+3)^2

Find the measure of angle b in the following triangle

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?